CN113964482A

CN113964482A - Electronic device

Info

Publication number: CN113964482A
Application number: CN202111224756.0A
Authority: CN
Inventors: 陈少波; 王珅
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-01-21
Also published as: WO2023066206A1

Abstract

The application discloses electronic equipment includes: device body and antenna assembly, the antenna assembly includes: the metal enclosing plate is arranged in the equipment body and encloses with the equipment body to form a resonant cavity, wherein the at least one metal partition plate is arranged in the resonant cavity and divides the resonant cavity into at least two sub-cavities, the at least two media and the at least two sub-cavities are arranged in a one-to-one correspondence manner, and one of the media is placed in one of the sub-cavities; and each sub-cavity is correspondingly provided with an independent opening for transmitting electromagnetic wave energy. The resonant cavity antenna can be arranged in at least two relatively independent resonant cavity antennas in one resonant cavity, the utilization rate of the resonant cavity is improved, the resonant cavity antennas can radiate electromagnetic wave energy towards different directions, and the resonant cavity antenna can adapt to more user scenes.

Description

Electronic device

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to electronic equipment.

Background

The resonant cavity is a common electronic device in the field of radio frequency/microwave, and the resonant cavity can radiate electromagnetic field energy to the outside by forming an opening on the closed resonant cavity to form an antenna. In recent years, resonant cavity antennas have been well developed and applied in the field of intelligent electronic devices, and have good adaptability to the appearance of the intelligent electronic devices, good antenna performance and high antenna radiation efficiency.

For the conventional cavity antenna, a cavity is generally used as a basic unit, and an antenna is formed by opening an opening in the cavity. However, using one resonant cavity as a basic unit has low space utilization rate for the resonant cavity; moreover, the antenna radiation characteristics obtained by the resonant cavity antenna are fixed, and the resonant cavity antenna cannot adapt to more user scenes.

Disclosure of Invention

The application aims at providing electronic equipment, and at least solves one of the problems that in the prior art, the space utilization rate of a resonant cavity is low, and a resonant cavity antenna cannot adapt to more user scenes.

In order to solve the technical problem, the present application is implemented as follows:

an embodiment of the present application provides an electronic device, including: device body and antenna assembly, the antenna assembly includes: the metal enclosing plate is arranged in the equipment body and encloses with the equipment body to form a resonant cavity, wherein,

the at least one metal partition plate is arranged in the resonant cavity and divides the resonant cavity into at least two sub cavities, the at least two media are arranged in one-to-one correspondence with the at least two sub cavities, and one of the media is placed in one of the sub cavities;

and each sub-cavity is correspondingly provided with an independent opening for transmitting electromagnetic wave energy.

In the embodiment of the present application, the at least one metal partition plate may divide the resonant cavity into at least two sub-cavities, and since one medium is correspondingly disposed in one sub-cavity, and each sub-cavity is correspondingly provided with one opening, the sub-cavities may radiate electromagnetic wave energy through the openings to form a resonant cavity antenna, so that at least two relatively independent resonant cavity antennas may be disposed in one resonant cavity, and the utilization rate of the resonant cavity may be improved; moreover, the metal partition plate can separate at least two resonant cavities, so that the resonant cavity antenna can radiate electromagnetic wave energy towards different directions, and more user scenes can be adapted.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a cavity antenna according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a cavity antenna according to an embodiment of the present application;

FIG. 3 is a schematic radiation diagram of the cavity antenna shown in FIG. 1;

FIG. 4 is an exploded view of another cavity antenna according to an embodiment of the present application;

FIG. 5 is a schematic radiation diagram of the cavity antenna shown in FIG. 4;

FIG. 6 is an exploded view of another cavity antenna according to an embodiment of the present application;

FIG. 7 is an exploded view of another cavity antenna according to an embodiment of the present application;

fig. 8 is a graph of the reflection coefficient of a cavity antenna according to an embodiment of the present application.

Reference numerals:

1-equipment body, 11-support, 12-frame body, 121-upper frame, 122-lower frame, 123-side frame, 2-antenna assembly, 21-metal enclosing plate, 22-metal partition plate, 23-opening, 24-medium and 3-display screen.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "length," "width," "thickness," "upper," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

An electronic device according to an embodiment of the application is described below with reference to fig. 1-7.

Fig. 1 is a schematic diagram illustrating an explosion structure of a cavity antenna according to an embodiment of the present application, and fig. 2 is a schematic diagram illustrating an arrangement structure of a cavity antenna according to an embodiment of the present application, which may specifically include, in combination with fig. 1 and fig. 2: device body 1 and antenna module 2, antenna module 2 can include: the metal enclosing plate 21 can be arranged in the equipment body 1 and encloses with the equipment body 1 to form a resonant cavity, wherein the at least one metal partition plate 22 can be arranged in the resonant cavity and can divide the resonant cavity into at least two sub-cavities, the at least two media 24 can be arranged in one-to-one correspondence with the at least two sub-cavities, and one medium 24 can be arranged in one sub-cavity; wherein, each sub-cavity can be correspondingly provided with an independent opening 23, and the opening 23 can be used for transmitting electromagnetic wave energy.

In the embodiment of the present application, the resonant cavity can be divided into at least two sub-cavities by at least one metal partition 22, and since one medium 24 is correspondingly arranged in one sub-cavity, and each sub-cavity is correspondingly provided with one opening 23, the sub-cavities can radiate electromagnetic wave energy outwards through the openings to form one resonant cavity antenna, so that at least two relatively independent resonant cavity antennas can be arranged in one resonant cavity, and the utilization rate of the resonant cavity can be improved; moreover, the metal partition 22 can separate at least two sub-cavities, so that the resonant cavity antenna can radiate electromagnetic wave energy towards different directions, and can adapt to more user scenes.

The electronic device in the embodiment of the present application includes, but is not limited to, a tablet, a computer, a smart watch, a router, and the like. Specifically, electronic devices include, but are not limited to: network module, audio output unit, input unit, sensor, display unit, user input unit, interface unit, memory, and processor. The electronic device may further include a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor via a power management system, so that functions of managing charging, discharging, and power consumption may be implemented via the power management system. The electronic device may include more components, or combine certain components, or a different arrangement of components, which will not be described in detail herein.

Specifically, the device body 1 is an important component of the electronic device, and the metal enclosing plate 21 may be disposed in the device body 1 and may enclose with the device body 1 to form a resonant cavity.

Specifically, the metal enclosing plate 21 may be connected to the top end, the bottom end, or the middle position of the apparatus body 1, and may be specifically arranged according to the spatial layout of the apparatus body 1, which is not specifically limited in this embodiment of the present application.

Further, the apparatus body 1 may include a support 11 and a frame 12, the metal enclosing plate 21 may be connected to the support 11 and the frame 12, respectively, and enclose to form a resonant cavity, and the frame 12 may include: the resonant cavity may be disposed near the upper frame 121, or near the lower frame 122, or near the side frame 123, which is not specifically limited in this embodiment of the application. The support 11 and the frame 12 may be metal structural members, specifically, metal structural members made of metal materials, or surface metallization structural members, for example: metallization of the surface of the plastic, etching of metal on the surface of the FPC and the like.

Specifically, the electronic device further includes a display screen 3, the display screen 3 may cover the device body 1, and the antenna assembly 2 may be disposed under the display screen 3.

Specifically, an opening 23 is formed in the sub-cavity, so that the sub-cavity can radiate electromagnetic wave energy to the outside through the opening 23, and a resonant cavity antenna is formed. The shape of the opening 23 may be an oval, a square, a circle, or an irregular pattern, which is not particularly limited in the embodiment of the present application.

Further, the metal partition plate 22 may divide the resonant cavity into at least two sub cavities which are independently arranged, and each sub cavity may be provided with an opening 23, so that at least two independently arranged resonant cavity antennas may be formed, and at least two resonant cavity antennas may radiate electromagnetic wave energy toward different directions, thereby realizing various radiation characteristics. In practical applications, at least two cavity antennas operate independently and do not affect each other, for example: only one resonator antenna may radiate electromagnetic wave energy, or only two resonator antennas may radiate electromagnetic wave energy, or at least two resonator antennas may radiate electromagnetic wave energy simultaneously.

As shown in fig. 1 and 2, a metal partition 22 may divide the resonant cavity into two sub-cavities to form two resonant cavity antennas, so as to realize the multiplexing of the resonant cavity. Specifically, the opening 23 of one sub-cavity may be provided on the apparatus body 1 and on the side facing away from the display screen 3, so that the resonator antenna can radiate electromagnetic wave energy in a direction facing away from the side of the display screen 3; the opening 23 of the other sub-cavity may be provided on the metal enclosure plate 21 and directed toward the display screen 3 side so that the cavity antenna may radiate electromagnetic wave energy in a direction facing the display screen 3 side.

In practical applications, two metal partitions 22 may also be used to divide the resonant cavity into at least two sub-cavities to form at least two resonant cavity antennas. The number of the metal partitions 22 may be set according to actual requirements of the resonant cavity antenna, and the embodiment of the present application is not particularly limited thereto.

In practical applications, the materials of the at least two media 24 may be the same or different, and this is not particularly limited in this embodiment.

In still other embodiments of the present application, the device body 1 may include a support 11 and an upper frame 121, the upper frame 121 may be connected to the support 11 and the metal enclosing plate 21, respectively, and the support 11, the upper frame 121 and the metal enclosing plate 21 may enclose to form a resonant cavity; the metal partition plate 22 may be disposed between the bracket 11 and the metal enclosing plate 21; the opening 23 may be provided on at least one of the bracket 11, the upper frame 121, and the metal enclosing plate 21.

In the embodiment of the present invention, the bracket 11, the upper frame 121, and the metal enclosure plate 21 enclose to form a resonant cavity, so that the resonant cavity antenna can be disposed at the top end of the device body 1. The opening 23 of the sub-cavity can be arranged on the support 11, or on the upper frame 121, or on the metal enclosing plate 21, the diversity of the opening 23 can be improved, and further the diversity of the radiation characteristic of the resonant cavity antenna can be improved.

Specifically, the bracket 11 and the upper frame 121 may be metal structural members made of a metal material.

Specifically, the following description will be given by taking an example in which one metal partition 22 divides the resonant cavity into two sub-cavities, and other cases may refer to the arrangement:

specifically, the openings 23 of both the sub-cavities may be provided on the metal enclosure plate 21 so that both the resonator antennas can radiate electromagnetic wave energy in a direction facing the side of the display screen 3. Further, the opening 23 may be disposed at the top of the metal enclosing plate 21, so that a certain distance is formed between the metal enclosing plate 21 and the upper frame 121, and electromagnetic wave energy may radiate outwards through a black border region on the display screen 3 side of the electronic device, and the black border region is a glass structure, so that electromagnetic wave energy is conveniently transmitted, and the opening 23 may be prevented from being disposed on the upper frame 121 or the bracket 11, thereby improving the appearance design of the upper frame 121 or the bracket 11, improving the texture of the electronic device, and improving the structural stability of the electronic device.

As shown in fig. 1 and 6, the opening 23 of one sub-cavity may be provided on the bracket 11, the opening 23 of the other sub-cavity may be provided on the metal enclosure plate 21, and the two resonator antennas may radiate electromagnetic wave energy in the direction of the arrow shown in fig. 3. Alternatively, the opening 23 of one sub-cavity may be disposed on the upper frame 121, and the opening 23 of the other sub-cavity may be disposed on the metal enclosing plate 21.

As shown in fig. 4, the opening 23 of one sub-cavity may be provided on the support 11, the opening 23 of the other sub-cavity may be provided on the upper frame 121, and the two cavity antennas may radiate electromagnetic wave energy in the direction of the arrow shown in fig. 5. As shown in fig. 7, the openings 23 of both sub-cavities may be provided on the upper frame 121. Alternatively, the openings 23 of both subcavities may be provided on the support 11.

Further, the opening 23 of the sub-cavity is arranged on the bracket 11 or the upper frame 121, so that electromagnetic wave energy radiated by the resonant cavity antenna towards the side facing the display screen 3 can be avoided, the electromagnetic wave energy radiated towards the human body can be effectively reduced, and the potential influence on the human body is reduced. Moreover, the opening 23 for radiating electromagnetic wave energy is not arranged on the side of the display screen 3 of the electronic equipment, so that the electronic equipment can realize the appearance design of a full screen and better meet the appearance requirement of a user on the electronic equipment.

As shown in fig. 1, the metal separator 22 may be disposed in parallel with the support 11, and at least two sub-chambers may be independently disposed in the width direction of the upper frame 121.

In this embodiment, the metal partition plates 22 are parallel to the support 11, so as to divide the resonant cavity into a plurality of sub-cavities, and at least two sub-cavities can be independently arranged along the width direction of the upper frame 121 to form a plurality of independently arranged resonant cavity antennas.

Further, the metal partition plate 22 is disposed parallel to the bracket 11, specifically: the metal partition 22 is parallel to the bracket 11, and a gap is formed between the metal partition 22 and the bracket 11.

As shown in fig. 6, the metal separator 22 may be disposed perpendicular to the support 11, and at least two sub-chambers may be independently disposed along the length direction and/or the thickness direction of the upper frame 121.

In this embodiment, the metal partition 22 is perpendicular to the support 11, so as to divide the resonant cavity into a plurality of sub-cavities, at least two sub-cavities are independently arranged along the length direction and/or the thickness direction of the upper frame 121, and a plurality of independently arranged resonant cavity antennas can be formed.

Further, the metal partition 22 is perpendicular to the bracket 11, specifically: the metal partition 22 is perpendicular to the holder 11, and the metal partition 22 abuts against the holder 11.

As shown in fig. 7, the metal separator 22 includes a first straight portion and a first bent portion, the first straight portion is disposed parallel to the bracket 11, and the first bent portion is disposed perpendicular to the bracket 11; at least two sub-cavities are independently arranged along the width direction, the length direction and the height direction of the upper frame 121.

In this application embodiment, first straight portion and support 11 parallel arrangement, first kink and support 11 perpendicular setting can improve metal partition 22's variety, are convenient for cut apart into different sub cavities with the resonant cavity to set up different resonant cavity antennas, can also improve resonant cavity antennas's the quantity that sets up.

Specifically, the metal partition 22 may divide the resonant cavity into at least two sub cavities with different sizes, and may implement a resonant cavity antenna operating in at least two independent frequency bands. Further, the operating frequency of the cavity antenna may be related to the physical size of the cavity antenna, and the operating frequency of the cavity antenna may be lower for larger physical sizes of the cavity antenna. The physical dimensions of the cavity antenna include, but are not limited to, the volume size of the sub-cavity. As shown in fig. 7, the metal partition 22 may divide the resonant cavity into two sub cavities with different sizes, and may form a first resonant cavity antenna and a second resonant cavity antenna, where the first resonant cavity antenna may be used to cover a high frequency band, and the second resonant cavity antenna may be used to cover a low frequency band. Specifically, as shown in fig. 8, a curve B is an antenna reflection coefficient curve corresponding to the first cavity antenna, and a curve a is an antenna reflection coefficient frequency band corresponding to the second cavity antenna, where a frequency value f1 is less than a frequency value f2, and a reflection coefficient is a ratio of a reflected wave to an incident wave at an antenna feed port.

Specifically, the first resonant cavity antenna and the second resonant cavity antenna may radiate electromagnetic wave energy in the same direction, or may radiate electromagnetic wave energy in different directions, that is, both the high-band resonant cavity antenna and the low-band resonant cavity antenna may implement radiation characteristics toward the display screen 3 side, the upper frame 121 side, and the bracket 11 side, and may be determined according to comprehensive consideration of factors such as a user use scene, a product internal stacking design, a product appearance design requirement, and an influence of antenna radiation on a human body, which is not specifically limited in this embodiment of the present application.

Alternatively, the metal enclosing plate 21 may include a second bent portion and a second straight portion, the second straight portion may be opposite to the apparatus body 1, and the second bent portion may be bent toward the apparatus body 1 along the second straight portion.

In this embodiment, the second straight portion is opposite to the device body 1, and the second bent portion is bent toward the device body 1 along the second straight portion, so that the metal enclosing plate 21 and the device body 1 enclose to form a resonant cavity.

Alternatively, the metal enclosing plate 21 may include: at least one of a metallic structural member, a surface-metallized structural member; the metal separator 22 includes: at least one of a metallic structural member and a surface-metallized structural member.

In the embodiment of the present application, the metal enclosing plate 21 may be a metal structural member, or may also be a surface-metalized structural member, which may improve the structural diversity of the metal enclosing plate 21. The metal separator 22 may be a metal structure or a surface-metalized structure, which may improve the structural diversity of the metal separator 22.

Specifically, the metal structural member may be a structural member made of a metal material; the surface-metallized structure may be a structure that forms a layer of a metal structure on a surface of a substrate, for example: a structure of a metal layer is formed on a non-metal surface by various surface treatment techniques, or a metal pattern is formed on a flexible substrate surface by an etching process, for example: the plastic surface is metallized, and the FPC surface is etched with metal, etc., which are not specifically limited in this application.

Optionally, the electronic device may include a control module that may be electrically connected to the antenna assembly 2 for adjusting the operating state of the antenna assembly 2.

In the embodiment of the invention, the working state of the antenna component 2 can be adjusted through the control module, so that the working state of the resonant cavity antenna can be flexibly configured by combining an external signal environment, user scene requirements, user use postures and the like.

Specifically, when a user needs a faster signal transmission speed, at least two resonant cavity antennas can be simultaneously started; when the influence of the resonant cavity antenna on the human body needs to be reduced, the resonant cavity antenna which radiates electromagnetic wave energy towards the direction departing from the display screen 3 side can be only started, so that the electromagnetic wave energy radiated by the resonant cavity antenna can be far away from the human body.

Alternatively, the material of the at least two media 24 may be the same. In practical applications, at least two media 24 are made of the same material, so that the resonant cavity antenna is simple and convenient to arrange.

Alternatively, the dielectric constant of the medium 24 may be greater than 1.0. In practical applications, the dielectric constant of the dielectric 24 is greater than 1.0, which can increase the energy of the electromagnetic wave radiated by the cavity antenna.

Specifically, the relative dielectric constant of the dielectric 24 material may be greater than or equal to 1.0, and for example, the relative dielectric constant of the dielectric 24 material may be 1.0, 1.5, 2.0, 3.0, or 3.5, which is not specifically limited in this embodiment of the application.

Specifically, the material of the medium 24 may be non-metal material such as air, plastic, ceramic, glass, etc., and the specific material of the medium 24 is not particularly limited in the embodiments of the present application.

Further, the shape of the medium 24 may be a cylinder, a cube, a cone, or an irregular structure, including but not limited to the shapes shown in fig. 1 to 7, and it is specifically considered that the resonant cavity antenna has an operating frequency band, an occupied space size, a product internal structure stack, a product structural strength, a manufacturing process, an assembly process, and other factors, which is not specifically limited in this embodiment of the present application.

The electronic equipment of the embodiment of the application at least comprises the following advantages:

in the embodiment of the present application, the at least one metal partition plate may divide the resonant cavity into at least two sub-cavities, and since one medium is correspondingly disposed in one sub-cavity, and each sub-cavity is correspondingly provided with one opening, the sub-cavities may radiate electromagnetic wave energy through the openings to form one resonant cavity antenna, so that at least two relatively independent resonant cavity antennas may be disposed in one resonant cavity, and the utilization rate of the resonant cavity may be improved; moreover, the metal partition plate can separate at least two resonant cavities, so that the resonant cavity antenna can radiate electromagnetic wave energy towards different directions, and more user scenes can be adapted.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, comprising: device body and antenna assembly, the antenna assembly includes: the metal enclosing plate is arranged in the equipment body and encloses with the equipment body to form a resonant cavity, wherein,

2. The electronic device according to claim 1, wherein the device body comprises a support and an upper frame, the upper frame is connected with the support and the metal enclosure plate respectively, and the support, the upper frame and the metal enclosure plate are enclosed to form the resonant cavity;

the metal partition plate is arranged between the bracket and the metal enclosing plate;

the opening is arranged on at least one of the support, the upper frame and the metal enclosing plate.

3. The electronic device of claim 2, wherein the metal partition is disposed parallel to the support, and the at least two sub-cavities are independently disposed along a width direction of the upper bezel.

4. The electronic device according to claim 2, wherein the metal partition is disposed perpendicular to the support, and the at least two sub-cavities are independently disposed along a length direction and/or a thickness direction of the upper frame.

5. The electronic device according to claim 2, wherein the metal partition comprises a first straight portion and a first bent portion, the first straight portion is disposed parallel to the bracket, and the first bent portion is disposed perpendicular to the bracket;

the at least two sub cavities are independently arranged along the width direction, the length direction and the height direction of the upper frame respectively.

6. The electronic device according to claim 1, wherein the metal enclosing plate includes a second bent portion and a second straight portion, the second straight portion is opposite to the device body, and the second bent portion is bent toward the device body along the second straight portion.

7. The electronic device of claim 1, wherein the metal enclosure plate comprises: at least one of a metallic structural member, a surface-metallized structural member;

the metal separator includes: at least one of a metallic structural member and a surface-metallized structural member.

8. The electronic device of claim 1, comprising a control module electrically connected to the antenna assembly for adjusting an operating state of the antenna assembly.

9. The electronic device of claim 1, wherein the at least two media are the same material.

10. The electronic device of claim 1, wherein the dielectric constant of the medium is greater than or equal to 1.0.